Book/Report FZJ-2016-03446

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Studie zur Untersuchung der Wirksamkeit einer nicht zentralen Neutronenquelle für das 300-MW$_{e}$-Kernkraftwerk Schmehausen und Vergleich von zwei- und drei-dimensionalen Modellen

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1977
Kernforschungsanlage Jülich, Verlag Jülich

Jülich : Kernforschungsanlage Jülich, Verlag, Berichte der Kernforschungsanlage Jülich 1378, getr. Pag. ()

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Report No.: Juel-1378

Abstract: The loading and start-up phase of the THTR 300 is controlled by an external neutron source. To treat positions for this source outside of the reactor axis 3-dimensional neutron physical computer modeln are necessary. The presented study treats the problem of the excentrically arranged neutron source in 3-D-geometry. Beyond that comparisons to 2-D-approximations are performed and the model-specific differences are discussed with regard to the Interpretation of detector signals. lt is shown that the 2--D-modeln concerning integral resuits like multiplication constant and total reaction raten deviate only little from the 3-D-representation. 0n the other hand distinct differences exist for the neutron distribution, which influence evidently the right positioning of detectors. An arrangement of the detector in a distance of 1 .5 m under the source plane of the reactor fulfills the discussed criteria.


Contributing Institute(s):
  1. Publikationen vor 2000 (PRE-2000 ; Retrocat)
Research Program(s):
  1. 899 - ohne Topic (POF3-899) (POF3-899)

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 Record created 2016-06-28, last modified 2021-01-29


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